The Yamaha Psre453 is a complete music production station with a 61-note keyboard. In addition to 758 different sound patches, sequencer functions allow you to program patterns and arpeggios. The control panel includes DSP (Digital Signal Processing) effects and pitch bend. In addition to the integrated dual 6-watt speakers, there are audio outputs to send the signal to an amplifier or soundcard, along with USB and MIDI connectivity.